A/D Conversion through Dithering

Z Cvetkovic (Inventor), I Daubechies (Inventor)

Research output: Patent


A/D conversion is achieved by employing a piecewise continuous dither signal such that a signal that results from combining the dither signal with the signal to be converted, has a zero-crossing within each interval Ij =(jT,(j+1)T), where j is an integer, T=π/λB, B is the bandwidth of the signal to be converted, and λ is a constant that is greater than 1, and those zero crossings in adjacent intervals Ij are always separated by some minimal distance, ε, for all intervals Ij. Zero crossings of the combined signal are detected, and the instances where those crossings occur are encoded; one zero crossing for each interval.
Original languageEnglish
Patent numberUS 6331831
Publication statusPublished - 18 Dec 2001


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